03 impala issues

03 impala bought 2 years ago and was fine for the first year and now it's been a guessing game for what's going on with it been to 4 different mechanics and none can tell us what's wrong here's our issues:Starts fine on the first start but then it's stutters when trying to start..have to put foot on the gas pedal while turning the key to get it to start most of the time and when that happens we get a rich fuel smell inside the car.Stalls just randomly whenever under 30 to 40km so come to a intersection it'll stall and gets arm strong steering.Sometimes it doesn't wanna move when putting foot on the gas and when it does go it jerks....Anyways just wanting to know some ideas or of anyone is having same issues others are.pointing us to the crankshaft position sensor but just want to make sure is all. Thanks for anything advice

3 Answers

If you smell fuel and shakes when under load, i would suspect the
ignition, a sparkplug coil(s), sparkplug or even maybe an injector
(less of a chance). Any change when humidity in air? Any
codes/missfire?

Did you change the spark plug wires along with the spark plugs? You
should have. Try cleaning the throttle body and IAC (Idle Air Control)
valve. Sounds like the IAC is misbehaving or possibly the throttle
position sensor. Check the coil packs as well. If you find one that's
weak, replace all three. If one is failing the other two are soon to
follow. HTH. -Jim

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